Convert editing/spelling/spelling-backward.html with spellcheck_test

Convert editing/spelling/spelling-backward.html with spellcheck_test

This patch converts the layout test with spellcheck_test as a
preparation for implementing idle time spellchecker.

BUG=517298
Committed: https://crrev.com/3b156bf2e21434d57480a7d0400e899cefa48916
Cr-Commit-Position: refs/heads/master@{#430228}

[Xiaocheng, 2016-11-07 04:11:21]

The CQ bit was checked by xiaochengh@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-07 04:11:37]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Xiaocheng, 2016-11-07 04:11:46]

Description was changed from

==========
Convert editing/spelling/spelling-backward.html with spellcheck_test


BUG=
==========

to

==========
Convert editing/spelling/spelling-backward.html with spellcheck_test

This patch converts the layout test with spellcheck_test as a
preparation for implementing idle time spellchecker.

BUG=517298
==========

[commit-bot: I haz the power, 2016-11-07 05:02:26]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-07 05:02:27]

Dry run: This issue passed the CQ dry run.

[Xiaocheng, 2016-11-07 05:17:44]

xiaochengh@chromium.org changed reviewers:
+ yosin@chromium.org

[Xiaocheng, 2016-11-07 05:17:44]

PTAL.

[yosin_UTC9, 2016-11-07 07:08:39]

The CQ bit was checked by yosin@chromium.org

[yosin_UTC9, 2016-11-07 07:08:39]

lgtm

[commit-bot: I haz the power, 2016-11-07 07:08:54]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-07 07:14:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-07 07:17:00]

Description was changed from

==========
Convert editing/spelling/spelling-backward.html with spellcheck_test

This patch converts the layout test with spellcheck_test as a
preparation for implementing idle time spellchecker.

BUG=517298
==========

to

==========
Convert editing/spelling/spelling-backward.html with spellcheck_test

This patch converts the layout test with spellcheck_test as a
preparation for implementing idle time spellchecker.

BUG=517298

Committed: https://crrev.com/3b156bf2e21434d57480a7d0400e899cefa48916
Cr-Commit-Position: refs/heads/master@{#430228}
==========

[commit-bot: I haz the power, 2016-11-07 07:17:01]

Patchset 1 (id:??) landed as
https://crrev.com/3b156bf2e21434d57480a7d0400e899cefa48916
Cr-Commit-Position: refs/heads/master@{#430228}